Approx. Rs 650 / RollGet Latest Price
|Minimum Order Quantity||1 Roll|
|Wire Size||1 sqmm|
|Roll Length||90 m|
|Insulation Material||FR PVC|
|Suitable for||Homes, Buildings, Construction|
|Country Of Origin||Made in India|
The Multi-strand wires come with a bunch of small wires bunched together to form one thick conductor. Multi-strand wires are more malleable than single strand wires with the same cross-sectional surface. The multi-stranded wires come in handy when you need a higher resistance to metal fatigue.
Multi-strand wires are used when the rigid nature of single-strand wires is not suitable, such as for circuit boards.
Single strand wires are prone to power loss due to skin effect, where the current travels on the outer surfaces of the wire. Multi-strand wires can reduce the skin effect, as the surface area of all the strands is more significant than single-strand wires.
It may not be true in the case of ordinary stranded wires where the strands are twisted together to form a single core.
Multi-strand wires also come with higher resistance because the cross-section is not made entirely with copper. There are also air gaps between the strands which contribute to the high resistance.
Multi-Strand Wire Sizes
Multi-Strand wires can come in different sizes to suit various applications. American Wire Gauge or AWG is taken as the standard and represents the wire diameter. The diameter is calculated based on the conductor with the insulation removed.
A multi-strand wire has an overall larger diameter than a single strand wire of the same current capacity and electrical resistance because of the gaps between the different strands.
The thickness of the diameter is more in lower AWG wires, and they keep on decreasing as the number goes up. For example, AWG 12 or 14 is used for general household wiring while AWG 22, 24, or 26 is applicable for telephone wiring.
Multi-Strand Wire Specification
Multi-strand wires come with similar specifications as standard wires. The wires have multiple strands which are bunched together to form a single core.
The strands can be made of different materials such as copper or aluminum. They are covered by outer insulation made of plastic, rubber, or other items such as PVC. Sometimes, the individual strands of the wire are provided with separate insulation which goes a long way to reduce the proximity effect.
Multi-Strand Wire Current Capacity
The current carrying capacity of wires represents the amperage the conductor can carry before the core or the insulation melts. The heat produced by an electrical current in the conductor determines the amount of electricity it can carry.
The current capacity depends on some factors such as the size of the conductor, the ambient temperature, the type of conductor insulation, and the number of strands. The installation conditions will also affect the current capacity of the multi-strand wire.
A 6 AWG multi-strand wire with 7 to 24 cores will have a current capacity of 38 amps. A 10 AWG multi-strand wire with 25 to 42 cores will have a current capacity of 18 amps. The current capacity of 24 AWG multi-strand wire with 7 to 24 cores will be 1.4 amps. Both single-strand and multi-strand wires are used for both commercial and residential purposes.